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1 | #include "cache.h" | |
2 | #include "config.h" | |
3 | #include "commit.h" | |
4 | #include "refs.h" | |
5 | #include "notes-utils.h" | |
6 | #include "repository.h" | |
7 | ||
8 | void create_notes_commit(struct repository *r, | |
9 | struct notes_tree *t, | |
10 | struct commit_list *parents, | |
11 | const char *msg, size_t msg_len, | |
12 | struct object_id *result_oid) | |
13 | { | |
14 | struct object_id tree_oid; | |
15 | ||
16 | assert(t->initialized); | |
17 | ||
18 | if (write_notes_tree(t, &tree_oid)) | |
19 | die("Failed to write notes tree to database"); | |
20 | ||
21 | if (!parents) { | |
22 | /* Deduce parent commit from t->ref */ | |
23 | struct object_id parent_oid; | |
24 | if (!read_ref(t->ref, &parent_oid)) { | |
25 | struct commit *parent = lookup_commit(r, &parent_oid); | |
26 | if (parse_commit(parent)) | |
27 | die("Failed to find/parse commit %s", t->ref); | |
28 | commit_list_insert(parent, &parents); | |
29 | } | |
30 | /* else: t->ref points to nothing, assume root/orphan commit */ | |
31 | } | |
32 | ||
33 | if (commit_tree(msg, msg_len, &tree_oid, parents, result_oid, NULL, | |
34 | NULL)) | |
35 | die("Failed to commit notes tree to database"); | |
36 | } | |
37 | ||
38 | void commit_notes(struct repository *r, struct notes_tree *t, const char *msg) | |
39 | { | |
40 | struct strbuf buf = STRBUF_INIT; | |
41 | struct object_id commit_oid; | |
42 | ||
43 | if (!t) | |
44 | t = &default_notes_tree; | |
45 | if (!t->initialized || !t->update_ref || !*t->update_ref) | |
46 | die(_("Cannot commit uninitialized/unreferenced notes tree")); | |
47 | if (!t->dirty) | |
48 | return; /* don't have to commit an unchanged tree */ | |
49 | ||
50 | /* Prepare commit message and reflog message */ | |
51 | strbuf_addstr(&buf, msg); | |
52 | strbuf_complete_line(&buf); | |
53 | ||
54 | create_notes_commit(r, t, NULL, buf.buf, buf.len, &commit_oid); | |
55 | strbuf_insertstr(&buf, 0, "notes: "); | |
56 | update_ref(buf.buf, t->update_ref, &commit_oid, NULL, 0, | |
57 | UPDATE_REFS_DIE_ON_ERR); | |
58 | ||
59 | strbuf_release(&buf); | |
60 | } | |
61 | ||
62 | int parse_notes_merge_strategy(const char *v, enum notes_merge_strategy *s) | |
63 | { | |
64 | if (!strcmp(v, "manual")) | |
65 | *s = NOTES_MERGE_RESOLVE_MANUAL; | |
66 | else if (!strcmp(v, "ours")) | |
67 | *s = NOTES_MERGE_RESOLVE_OURS; | |
68 | else if (!strcmp(v, "theirs")) | |
69 | *s = NOTES_MERGE_RESOLVE_THEIRS; | |
70 | else if (!strcmp(v, "union")) | |
71 | *s = NOTES_MERGE_RESOLVE_UNION; | |
72 | else if (!strcmp(v, "cat_sort_uniq")) | |
73 | *s = NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ; | |
74 | else | |
75 | return -1; | |
76 | ||
77 | return 0; | |
78 | } | |
79 | ||
80 | static combine_notes_fn parse_combine_notes_fn(const char *v) | |
81 | { | |
82 | if (!strcasecmp(v, "overwrite")) | |
83 | return combine_notes_overwrite; | |
84 | else if (!strcasecmp(v, "ignore")) | |
85 | return combine_notes_ignore; | |
86 | else if (!strcasecmp(v, "concatenate")) | |
87 | return combine_notes_concatenate; | |
88 | else if (!strcasecmp(v, "cat_sort_uniq")) | |
89 | return combine_notes_cat_sort_uniq; | |
90 | else | |
91 | return NULL; | |
92 | } | |
93 | ||
94 | static int notes_rewrite_config(const char *k, const char *v, void *cb) | |
95 | { | |
96 | struct notes_rewrite_cfg *c = cb; | |
97 | if (starts_with(k, "notes.rewrite.") && !strcmp(k+14, c->cmd)) { | |
98 | c->enabled = git_config_bool(k, v); | |
99 | return 0; | |
100 | } else if (!c->mode_from_env && !strcmp(k, "notes.rewritemode")) { | |
101 | if (!v) | |
102 | return config_error_nonbool(k); | |
103 | c->combine = parse_combine_notes_fn(v); | |
104 | if (!c->combine) { | |
105 | error(_("Bad notes.rewriteMode value: '%s'"), v); | |
106 | return 1; | |
107 | } | |
108 | return 0; | |
109 | } else if (!c->refs_from_env && !strcmp(k, "notes.rewriteref")) { | |
110 | /* note that a refs/ prefix is implied in the | |
111 | * underlying for_each_glob_ref */ | |
112 | if (starts_with(v, "refs/notes/")) | |
113 | string_list_add_refs_by_glob(c->refs, v); | |
114 | else | |
115 | warning(_("Refusing to rewrite notes in %s" | |
116 | " (outside of refs/notes/)"), v); | |
117 | return 0; | |
118 | } | |
119 | ||
120 | return 0; | |
121 | } | |
122 | ||
123 | ||
124 | struct notes_rewrite_cfg *init_copy_notes_for_rewrite(const char *cmd) | |
125 | { | |
126 | struct notes_rewrite_cfg *c = xmalloc(sizeof(struct notes_rewrite_cfg)); | |
127 | const char *rewrite_mode_env = getenv(GIT_NOTES_REWRITE_MODE_ENVIRONMENT); | |
128 | const char *rewrite_refs_env = getenv(GIT_NOTES_REWRITE_REF_ENVIRONMENT); | |
129 | c->cmd = cmd; | |
130 | c->enabled = 1; | |
131 | c->combine = combine_notes_concatenate; | |
132 | c->refs = xcalloc(1, sizeof(struct string_list)); | |
133 | c->refs->strdup_strings = 1; | |
134 | c->refs_from_env = 0; | |
135 | c->mode_from_env = 0; | |
136 | if (rewrite_mode_env) { | |
137 | c->mode_from_env = 1; | |
138 | c->combine = parse_combine_notes_fn(rewrite_mode_env); | |
139 | if (!c->combine) | |
140 | /* | |
141 | * TRANSLATORS: The first %s is the name of | |
142 | * the environment variable, the second %s is | |
143 | * its value. | |
144 | */ | |
145 | error(_("Bad %s value: '%s'"), GIT_NOTES_REWRITE_MODE_ENVIRONMENT, | |
146 | rewrite_mode_env); | |
147 | } | |
148 | if (rewrite_refs_env) { | |
149 | c->refs_from_env = 1; | |
150 | string_list_add_refs_from_colon_sep(c->refs, rewrite_refs_env); | |
151 | } | |
152 | git_config(notes_rewrite_config, c); | |
153 | if (!c->enabled || !c->refs->nr) { | |
154 | string_list_clear(c->refs, 0); | |
155 | free(c->refs); | |
156 | free(c); | |
157 | return NULL; | |
158 | } | |
159 | c->trees = load_notes_trees(c->refs, NOTES_INIT_WRITABLE); | |
160 | string_list_clear(c->refs, 0); | |
161 | free(c->refs); | |
162 | return c; | |
163 | } | |
164 | ||
165 | int copy_note_for_rewrite(struct notes_rewrite_cfg *c, | |
166 | const struct object_id *from_obj, const struct object_id *to_obj) | |
167 | { | |
168 | int ret = 0; | |
169 | int i; | |
170 | for (i = 0; c->trees[i]; i++) | |
171 | ret = copy_note(c->trees[i], from_obj, to_obj, 1, c->combine) || ret; | |
172 | return ret; | |
173 | } | |
174 | ||
175 | void finish_copy_notes_for_rewrite(struct repository *r, | |
176 | struct notes_rewrite_cfg *c, | |
177 | const char *msg) | |
178 | { | |
179 | int i; | |
180 | for (i = 0; c->trees[i]; i++) { | |
181 | commit_notes(r, c->trees[i], msg); | |
182 | free_notes(c->trees[i]); | |
183 | } | |
184 | free(c->trees); | |
185 | free(c); | |
186 | } |